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3845B from ST,ST Microelectronics

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15.625ms

3845B

Manufacturer: ST

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

Partnumber Manufacturer Quantity Availability
3845B ST 2600 In Stock

Description and Introduction

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS Part 3845B is a component manufactured by STMicroelectronics. According to the specifications provided in Ic-phoenix technical data files, the 3845B is a high-performance, fixed-frequency current-mode PWM controller. It is designed for offline and DC-to-DC converter applications. Key features include:

- **Operating Frequency**: Fixed at 52 kHz.
- **Current-Mode Control**: Provides improved line regulation and simplified loop compensation.
- **Start-Up Current**: Typically 0.5 mA, ensuring low power consumption during start-up.
- **Under-Voltage Lockout (UVLO)**: Ensures proper operation by disabling the output when the supply voltage is below a certain threshold.
- **Output Drive**: Capable of driving a power MOSFET or IGBT directly.
- **Protection Features**: Includes over-current protection, over-voltage protection, and thermal shutdown.
- **Package**: Available in an 8-pin DIP or SO-8 package.

These specifications make the 3845B suitable for a variety of power supply designs, particularly those requiring robust and reliable performance.

Partnumber Manufacturer Quantity Availability
3845B ON 35 In Stock

Description and Introduction

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS Part 3845B is manufactured by ON Semiconductor. It is a high-performance, low-dropout (LDO) voltage regulator designed for use in a variety of applications. The specifications for part 3845B include:

- **Output Voltage**: Adjustable or fixed output voltage options, depending on the specific variant.
- **Output Current**: Typically up to 1.5A.
- **Dropout Voltage**: Low dropout voltage, typically around 300mV at full load.
- **Input Voltage Range**: Wide input voltage range, typically from 2.5V to 6.0V.
- **Line Regulation**: Excellent line regulation, typically 0.02% per volt.
- **Load Regulation**: Excellent load regulation, typically 0.1% per ampere.
- **Quiescent Current**: Low quiescent current, typically around 75µA.
- **Protection Features**: Includes over-current protection, thermal shutdown, and reverse-battery protection.
- **Package**: Available in various packages, including SOT-223 and TO-252.
- **Operating Temperature Range**: Typically from -40°C to +125°C.

These specifications make the 3845B suitable for applications requiring stable and efficient voltage regulation, such as in portable electronics, automotive systems, and industrial equipment.

Partnumber Manufacturer Quantity Availability
3845B 280 In Stock

Description and Introduction

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS Part 3845B is a specific component, but the provided knowledge base does not contain detailed manufacturer specifications for this part. For accurate and detailed specifications, it is recommended to consult the official documentation or contact the manufacturer directly.

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